Moderate

When the prosthetic group of an enzyme is an inorganic ion, it is called a_____________?

Correct answer: A. Cofactor

  • A. Cofactor
  • B. Coenzyme
  • C. Apoenzyme
  • D. Holoenzyme

Explanation

An inorganic ion that is tightly associated with an enzyme and required for its activity is termed a cofactor. Coenzymes are organic helpers, whereas an apoenzyme lacks its required non-protein component and a holoenzyme is the complete active form.

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